What Does TOG Mean and How to Choose the Right Merino Bag Based on Room Temperature?
FAQ
Not sure which merino sleeping bag your baby needs? The key isn't just the season outside—it's the temperature in your baby’s bedroom and their unique heat tolerance. Use our simple TOG guide below to find the ideal sleeping bag thickness for safe, comfortable, and peaceful sleep all night long.
| Sleeping Bag Type | TOG Rating | Room Temperature | Season & Usage |
|---|---|---|---|
| Single-layer Summer View summer bags → |
0.5 TOG | 26 °C and above | Hot summer days and nights (when it’s 40 °C outside) |
| Summer View summer bags → |
1.0 TOG | 24 – 26 °C | Warm summer, warm apartment |
| All-year (Classic) View all-year bags → |
1.5 – 2.0 TOG | 20 – 24 °C | Spring, summer, autumn (standard room) |
| All-year (Thicker) View all-year bags → |
2.5 TOG | 19 – 22 °C | Autumn, winter, spring (cooler room) |
| Winter View winter bags → |
3.0 TOG | 18 – 22 °C | Cooler room, winter season |
| Long-sleeve Winter (extra layer on the back) View with sleeves → |
3.5 TOG | from 16 °C | Cold environment / winter ventilation |
🔥 / ❄️ Consider Your Baby's Thermal Profile
The temperature chart is a great reference point, but every baby perceives heat differently. Which type do you have at home?
🔥 Warm-blooded Baby
- Overheats easily, often wakes up with a sweaty neck.
- Our Advice: Feel free to choose one TOG level lower (e.g., 2.5 TOG for the entire winter, or a summer 1.0 TOG in a well-heated apartment even during cold months).
❄️ Cold-sensitive Baby
- Tends to have cold hands and feet and requires more warmth for a peaceful sleep.
- Our Advice: Go for a thicker bag (3.0 to 3.5 TOG with sleeves) or add an extra layer of pajamas underneath.
💡 Why is Merino Ideal for Both Types? Merino wool naturally regulates temperature—storing heat when it’s cold and releasing moisture when the baby starts to overheat. With merino, you have much greater flexibility than with synthetic sleeping bags!
